蔡襄 Traditional form: 蔡襄 Pinyin (reading): Cài Xiāng Definitions: Cai Xiang (1012-1067), Song calligrapher Characters: 蔡 - a species of tortoise; surname 襄 - to aid, to help, to assist; to undress Traditional characters: 蔡 - a species of tortoise; surname 襄 - to aid, to help, to assist; to undress